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Part: DIV100
Category:
Description:
Company: Burr-Brown (acquired by Texas Instruments, Inc.)
Datasheet: Download DIV100 datasheet File size : 108 kB
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DIV100
ANALOG DIVIDER
FEATURES
q HIGH ACCURACY: 0.25% Maximum Error, 40:1 Denominator Range q TWO-QUADRANT OPERATION Dedicated Log-Antilog Technique q EASY TO USE Laser-trimmed to Specified Accuracy No External Resistors Needed q LOW COST q DIP PACKAGE
APPLICATIONS
q DIVISION q SQUARE ROOT q RATIOMETRIC MEASUREMENT q PERCENTAGE COMPUTATION q TRANSDUCER AND BRIDGE LINEARIZATION q AUTOMATIC LEVEL AND GAIN CONTROL q VOLTAGE CONTROLLED AMPLIFIERS q ANALOG SIMULATION For those applications requiring higher accuracy than the DIV100 specifies, the capability for optional adjustment is provided. These adjustments allow the user to set scale factor, feedthrough, and outputreferred offsets for the lowest total divider error. The DIV100 also gives the user a precision, temperature-compensated reference voltage for external use. Designers of industrial process control systems, analytical instruments, or biomedical instrumentation will find the DIV100 easy to use and also a low cost, but highly accurate solution to their analog divider applications.
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ESCRIPTION
The DIV100 is a precision two-quadrant analog divider offering superior performance over a wide range of denominator input. Its accuracy is nearly two orders of magnitude better than multipliers used for division. It consists of four operational amplifiers and logging transistors integrated into a single monolithic circuit and a laser-trimmed, thin-film resistor network. The electrical characteristics of these devices offer the user guaranteed accuracy without the need for external adjustment -- the DIV100 is a complete, single package analog divider.
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International Airport Industrial Park · Mailing Address: PO Box 11400 Tel: (520) 746-1111 · Twx: 910-952-1111 · Cable: BBRCORP ·
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· Tucson, AZ 85734 · Street Address: 6730 S. Tucson Blvd. · Tucson, AZ 85706 Telex: 066-6491 · FAX: (520) 889-1510 · Immediate Product Info: (800) 548-6132 PDS-427B Printed in U.S.A. October, 1993
1980 Burr-Brown Corporation
SPECIFICATIONS
ELECTRICAL
At TA = +25°C and VCC = ±15VDC, unless otherwise specified. DIV100HP PARAMETER TRANSFER FUNCTION ACCURACY Total Error Initial vs Temperature vs Supply Warm-up TIme to Rated Performace AC PERFORMANCE Small-Signal Bandwidth 0.5% Amplitude Error 0.57° Vector Error Full-Power Bandwidth Slew Rate Settling Time Overload Recovery INPUT CHARACTERISTICS Input Voltage Range Numerator Denominatior Input Resistance OUTPUT CHARACTERISTICS Full-Scale Output Rated Output Voltage Current Current Limit Positive Negative OUTPUT NOISE VOLTAGE fB = 10Hz to 10kHz D = +10V D = +250mV RL 10k 0.25V D 10V, N |D| 1V D 10V, N |D| 0.25V D 1V, N |D| 0.25V D 10V, N |D| D = +10V 3dB Small-Signal Small-Signal VO = ±10V, IO = ±5mA VD = ±10V, IO = ±5mA = 1%, VO = 20V 50% Output Overload 0.7 0.02 0.06 0.15 5 350 15 1000 30 2 15 4 1.0 0.05(2) 0.2(2) 0.3 * * * * * * * * * * * 0.5 * * 0.2 * * * * * * * * * * * 0.25 * * % FSO(1) % FSO/°C % FSO/°C % FSO/% Minutes kHz kHz Hz kHz V/µs µs µs CONDITIONS MIN TYP MAX MIN DIV100JP TYP VO = 10N/D MAX MIN DIV100KP TYP MAX UNITS
N |D| D +250mV Either Input
±10 ±10 25 ±10
* * * * * * 15 19 20(2) 23(2) * *
* * * * * * * *
V V k V V mA mA mA
IO = ±5mA VO = ±10V
±10 ±5
N = 0V 370 1 * * * * µ Vrms mVrms
REFERENCE VOLTAGE CHARACTERISTICS, RL 10M Output Voltage Initial At 25°C vs Supply Temperature Coefficient Output Resistance POWER SUPPLY REQUIREMENTS Rated Voltage Operating Range Quiescent Current Postive Supply Negative Supply TEMPERATURE RANGE Specification Operating Temperature Storage *Same as DIV100HP.
6.5(2)
6.8 ±25 ±50 3 ±15
7.1(2)
*
* * * * *
*
*
* * * * *
*
V µ V/V ppm/°C k VDC VDC mA mA °C °C °C
Derated Performance
±12
±20 7(2) 10(2) +70 +85 +85
* * * * * *
* * * * * *
* * * * * *
* * * * * *
5 8 0 25 40
Derated Performance
NOTES: (1) FSO is the abbreviation for Full Scale Output. (2) This parameter is untested and is not guaranteed. This specifcation is established to a 90% confidence level.
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user's own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems.
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DIV100
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PIN CONFIGURATION
Bottom View
N VCC umerator (N) Input Output Offset Adjust N Input Offset Adjust D Common enominator (D) Input + Refe1 rence Voltage re 14 13 12 11 9 0 8 2 1 3 4 5 6 7 Gain Error Adjust Output V D CC Input Offset Adjust Internally Connected to Pin 1 Internally Connected to Pin 14 Internally Connected to Pin 8
ABSOLUTE MAXIMUM RATINGS
DIP Supply .......... ±20VDC Internal Power Dissipation(1) .......... 600mW Input Voltage Range(2) ........ ±20VDC Storage Temperature Range .......... 40°C to +85°C Operating Temperature Range ........ 25°C to 85°C Lead Temperature (soldering, 10s) ..... +300°C Output Short-Circuit Duration(1, 3) ........... Continuous Junction Temperature ........... +175°C NOTES: (1) See General Information section for discussion. (2) For supply voltages less than ±20VDC, the absolute maximum input voltage is equal to the supply voltage. (3) Short-circuit may be to ground only. Rating applies to an ambient temperature of +38°C at rated supply voltage.
PACKAGE INFORMATION ORDERING INFORMATION
MODEL DIV100HP DIV100JP DIV100KP TEMPERATURE RANGE 0°C to +70°C 0°C to +70°C 0°C to +70°C TOTAL INITIAL ERROR (% FSO) 1.0 0.5 0.25 MODEL DIV100HP DIV100JP DIV100KP PACKAGE 14-Pin DIP 14-Pin DIP 14-Pin DIP PACKAGE DRAWING NUMBER(1) 105 105 105
NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix D of Burr-Brown IC Data Book.
TYPICAL PERFORMANCE CURVES
TA = +25°C, VCC = ±15VDC, unless otherwise specified. TOTAL ERROR vs DENOMINATOR VOLTAGE 0 D = |N| 10V N +10V Total Error (% FSO) Numerator .10 +Numerator
Total Error (% FSO)
TOTAL ERROR vs AMBIENT TEMPERATURE 23
1.4 Denominator = 0.25V 1.8
0.2
.6 Denominator = 1V to 10V 0.01 0.1 1 Denominator Voltage (V) 10 0 5 10 25 40 55 70 Ambient Temperature (°C)
TOTAL ERROR vs OUTPUT CURRENT 0.6
FREQUENCY RESPONSE vs DENOMINATOR VOLTAGE 1 1M Small-Signal Bandwidth (3dB), VOUT = 100mVp-p F ull-Power Bandwidth, VOUT = 20Vp-p, RL = 2k
0.5
Total Error (% FSO)
Frequency (Hz)
1 00k
0.4
1 0k
0.3 +10V Output .2 0.1 0 2 4 6 8 10 Output Current (mA) 10V Output
k
100 0.1 1 Denominator Voltage (V) 10
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DIV100
TYPICAL PERFORMANCE CURVES (CONT)
TA = +25°C, VCC = ±15VDC, unless otherwise specified.
SMALL-SIGNAL FREQUENCY RESPONSE 0 D = +10V Amplitude Error (%) 5 Amplitude (dB) D = 0.25V 0 10 1
AMPLITUDE ERROR vs NUMERATOR FREQUENCY
N = ±1pk D = +10V
10 N = 2Vp-p 15
.1
20 1K 10k 100k Frequency (Hz) 1M
0.01 100 1k 10k 100k Numerator Frequency (Hz)
NONLINEARITY vs DENOMINATOR VOLTAGE 0.10 0.08 N = D sin t = 2 10Hz VOUT = 10 sin t
NONLINEARITY vs NUMERATOR FREQUENCY 1 5 D = +10V N = 20 sin t Nonlinearity (% FSO)
10
Nonlinearity (% FSO)
0.06 0.04
0
0.02
.10
0.01 0.1 1 Denominator Voltage (V)
0 10 100 1k 10k 100k Numerator Frequency (Hz)
DENOMINATOR FEEDTHROUGH vs DENOMINATOR FREQUENCY 2 40 N = 0.0 Volts 15 5 0
Output Voltage (V)
LARGE STEP RESPONSE
Denominator Feedthrough (dB)
0 D = 0.25V
0 5 10 15
D = +10V CL = 20pF RL = 2k
20
D = 1V D = 10V
40 60 100 1k 10k Frequency (Hz) 100k 1M
0
20
40 Time (µs)
60
80
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DIV100
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TYPICAL PERFORMANCE CURVES (CONT)
TA = +25°C, VCC = ±15VDC, unless otherwise specified.
LARGE SIGNAL STEP RESPONSE 10 5 D = +250mV CL = 20pF RL = 2k 150 5 00 Output Voltage (mV) 0 50 100 10 0 50 100 Time (µs) 150 200 150 0 10
TRANSIENT RESPONSE
0
D = +10V CL = 20pF
Output (V)
5
20 Time (µs)
30
40
TRANSIENT RESPONSE
OUTPUT NOISE vs DENOMINATOR VOLTAGE
0
D = +250mV CL = 20pF
10Hz to 10kHz Output Noise (mVrms)
100 5
10 1
Output (V)
N = 10V
50
N = 0V 0.1 0.1 1 Denominator Voltage (V) 10
100 0 50 100 Time (µs) 150 200
POWER SUPPLY REJECTION vs DENOMINATOR VOLTAGE 7 80 Quiescent Supply Current (mA)
Power Supply Rejection (dB)
QUIESCENT CURRENT vs AMBIENT TEMPERATURE 12
f = 60Hz 60 Positive Supply
8 0 Negative Supply 6
50
40
Negative Supply
4
Positive Supply
0 30 0.1 1 Denominator Voltage (V) 10
2 0 10 20 30 40 50 60 70 Ambient Temperature (°C)
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DIV100
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